package IteratorPattern;

public class BookShelfIterator implements Iterator{
    private BookShelf bookShelf;
    private int index;
    public BookShelfIterator(BookShelf bookShelf) {
        this.bookShelf=bookShelf;
        this.index=0;
    }

    @Override
    public boolean hasNext() {
        if (index<bookShelf.getLength())
            return true;
        else
            return false;
    }

    @Override
    public Object next() {
        Book book=bookShelf.getBookAt(index);
        index++;
        return book;
    }
}
